43451215052 has 24 divisors (see below), whose sum is σ = 88092878496. Its totient is φ = 18366853248.

The previous prime is 43451214907. The next prime is 43451215081. The reversal of 43451215052 is 25051215434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10626923 + ... + 10631010.

It is an arithmetic number, because the mean of its divisors is an integer number (3670536604).

Almost surely, 2^43451215052 is an apocalyptic number.

It is an amenable number.

43451215052 is an abundant number, since it is smaller than the sum of its proper divisors (44641663444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43451215052 is a wasteful number, since it uses less digits than its factorization.

43451215052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21258017 (or 21258015 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 43451215052 in words is "forty-three billion, four hundred fifty-one million, two hundred fifteen thousand, fifty-two".